Isoquinoline is a benzopyridine heterocyclic compound significant in alkaloids, pharmaceuticals, and synthetic organic chemistry.
Chemical Formula of Isoquinoline:
- C₉H₇N
Physical Properties of Isoquinoline:
| Property | Value |
| Appearance | Yellowish liquid |
| Boiling Point | ~243 °C |
| Melting Point | ~25 °C |
| Solubility | Slightly soluble in water |
| Basicity | pKa ~5.4 (slightly more basic than quinoline) |
Medicinal Uses:
- Found in benzylisoquinoline alkaloids (e.g., papaverine, berberine).
- Used in antihypertensive, antispasmodic, antitumor, and analgesic drugs.
- Intermediate in pharmaceutical synthesis.
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